Tire-tool.



G; SCHAEFER.

TIRE TOOL.

APPLIOATIONTILBD DEO.26, 1911. i 1,061,015. Patented May 6, 1913.

IIL f K mman E 'V Illllllllllh llNTE-#D STATES AN eUs'rAv SCHAE'FER, or NEW YORK, N. Y.

TIRE-T0013.-

To all 'whom z' may concern:

Be it known that I, GUsTAv SGHAEFER, a citizen of the United States, residing at New York city, county and State ptNew York, have invented a new and Improved Tire-Tool, of Vwhich the followingl is a specification.

This invention relates to a tool of-novel construction fordislodging pneumatic tires from wheel rims, so that the replacement of a worn or punctured tire may be quickly effected without danger of damaging the tire.

In the accompanying drawing: Figure 1 is a side view of, a tool embodying my invention, showing it in use with the tire and wheel rim in section; Fig. 2 a bottom view ot' 'the tool, and Fig. 3 a view similar to I Fig. 1, showing th'e'tire partly dislodged.

Theeteol comprises a flat bar 10 terminating in a handle and having one end curved in thelplane of the bar to approximate the circumference ot the tire. This curved end thus forms a relati'xbly lixed arm 11 which is adapted to embrE-rcd approximately halt of the tire 13 to be removed. To arm 11, there is pivoted at or near the middle of its curve, a second flat arm.12 constituting a relatively movable jaw and curved also to approximate the circumference ot' the tire, about one halt ot ivhicli it is adapted to embrace.

it is preferred to render'the pivotal connection between arms 11 and 12 adjustable so as to set the device to tires of different diameters. For this purpose, arm 11 is provided with a plurality of apertures 14,A

through either one of which the pivot pin 15 that passes also through a single aperture of arm 12 may be inserted. A nut 1G carried by the threaded end of pin 15 locks the latter in place after the desired adjustment has been effected. Arm 11 is provided at its :tree end witha laterally extending concave flange 1T, the inner working face of which is flush with the inner working edge of the arm to provide a wide jaw for engaging the tire on one side. To this effect- Specification of Letters Patent. Application filed December 26, 1911.

Patented May 6, 1913. seri-ai No. s613626.'

the'arm and jaw are struck from a common center with a like'radius. Jaw 17 ext-ends laterally from both sides of the arm, the lower end 11a of the latter .forming a reinforcing rib centered on the outer convex side of the jaw (Fig. 2), so that the device 1s here T-shaped in cross section. Movable arm 12 is likewise provided at its free end with a laterally ext-ending concave flange 18, that is Hush with the inner curved edge of said arm, to ail'ord an opposing jawtace. Jaw 18 however extends only from one side of arm 12, 2'. e. from'that side opposite t0 the one facing handle 10, so that the device is here L-shaped in cross section. This construction is for the purpose of' preventing the jaw on opening, from striking thei handle, and from thus interfering with the free play of arm 12.

ln use arm l1 is rested upon the outer flange 19 of wheel rim 20 while arm 12 is manually drawn toward and over the inner pry ghe tire from underneath inner flange. e

21 (liga), so. that it may subsequently readily drawn from under outer liange19. It will be seen that the tool will insure a firm grip on the tire and that owing tothe extensive bearing surfaces provided by the jaws, the tireis not liable to be cut or otherwise injured, even when subjected to considerable strain during the dislodging 0peration. At the same time the jaws while adapted to closely grasp the tire, will in no wise prevent a free play of the arms during the opening or closing movement of the tool.

I claim: l A tire tool comprising a flat bar having one end curved in the plane of the bar t0 approximate the circumference of a tire to embrace approximately one half thereof, and having at its .free end a lateral flange liush with the inner edge of the curved por* tion to provide a Wide jaw to engage the with the inner'curved edge to aord an 0ptirel (n one side, a Hat amil pvocl tof tage" posing jaw face.

sai ar ata roxmatel t emi eo t e f* curve and @g1g/ed also of approximate the GUSTA-V SCHAEFER' 5 circumference of the tire and embracing 4Witnesses:

approximately the other half thereof smd- FRANK V. BRlEsEN,

also having at its free end a flange flush KATHERYNE KOCH.

@epica of this patent may be obtainc for vl'cexlits each, by addressing the Commissioner of atents,

' Washington, D. C. 

